Added OFPFC_MODIFY_STRICT flow mod command.

[sliver-openvswitch.git] / datapath / chain.c

diff --git a/datapath/chain.c b/datapath/chain.c
index 87b8b79..865f908 100644 (file)
--- a/datapath/chain.c
+++ b/datapath/chain.c
@@ -101,8 +101,31 @@ int chain_insert(struct sw_chain *chain, struct sw_flow *flow)
        return -ENOBUFS;
 }
 
-/* Deletes from 'chain' any and all flows that match 'key'.  Returns the number
- * of flows that were deleted.
+/* Modifies actions in 'chain' that match 'key'.  If 'strict' set, wildcards 
+ * and priority must match.  Returns the number of flows that were modified.
+ *
+ * Expensive in the general case as currently implemented, since it requires
+ * iterating through the entire contents of each table for keys that contain
+ * wildcards.  Relatively cheap for fully specified keys. */
+int
+chain_modify(struct sw_chain *chain, const struct sw_flow_key *key, 
+               uint16_t priority, int strict,
+               const struct ofp_action *actions, int n_actions)
+{
+       int count = 0;
+       int i;
+
+       for (i = 0; i < chain->n_tables; i++) {
+               struct sw_table *t = chain->tables[i];
+               count += t->modify(t, key, priority, strict, actions, n_actions);
+       }
+
+       return count;
+}
+
+/* Deletes from 'chain' any and all flows that match 'key'.  If 'strict' set, 
+ * wildcards and priority must match.  Returns the number of flows that were 
+ * deleted.
  *
  * Expensive in the general case as currently implemented, since it requires
  * iterating through the entire contents of each table for keys that contain